20731338

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:387

約数の個数: 48

約数和(自身を含む): 46425600

約数和(自身を除く): 25694262

約数列:

[1, 2, 3, 6, 9, 18, 61, 79, 122, 158, 183, 237, 239, 366, 474, 478, 549, 711, 717, 1098, 1422, 1434, 2151, 4302, 4819, 9638, 14457, 14579, 18881, 28914, 29158, 37762, 43371, 43737, 56643, 86742, 87474, 113286, 131211, 169929, 262422, 339858, 1151741, 2303482, 3455223, 6910446, 10365669, 20731338]

約数ペア:

[(1, 20731338), (2, 10365669), (3, 6910446), (6, 3455223), (9, 2303482), (18, 1151741), (61, 339858), (79, 262422), (122, 169929), (158, 131211), (183, 113286), (237, 87474), (239, 86742), (366, 56643), (474, 43737), (478, 43371), (549, 37762), (711, 29158), (717, 28914), (1098, 18881), (1422, 14579), (1434, 14457), (2151, 9638), (4302, 4819)]